Chain pipe-wrench.



DE MONT OARYL.

CHAIN PIPE WRENCH.

APPLIGATION FILED MAR. 20, 1911.

1,015,667. 1 v Patented Jan. 23, 1912.

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COLUMBIA PMNOGIAP" c0., WASHINGTON n c DE MONT GARYL.-

CHAIN PIPE WRENCH. APPLICATION FILED MAE.20, 1911.

1,015,667, Patented Jan. 23, 1912.

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IJULUMBIA PLANOGRAPH cu, WASHINGTON, u. c.

UNITED STATES PATENT OFFICE.

DE IVIONT CARYL, 0F WISCOY, NEW YORK.

CHAIN PIPE-WRENCH.

To all whom it may concern:

Be it known that I,- DE MONT CARYL, a citizen of the United States,residing at lViscoy, in the county' of Allegany and State of New York,have invented certain new and useful Improvements in ChainPipe-Wrenches; and I do declare the following to be a full, clear, andexactolescription of the invent-ion, such as will enablev others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in chain pipe wrenches.

One object of the invention is to provide a wrench of this characterhaving an improved construction and arrangement of pipe engaging jawsand chain whereby the wrench may be operated to turn the pipe in eitherdirection without removing it from the pipe or reversing the parts.

Another object is to provide a wrench of this character having animproved construction of chain adjustmg mechanism whereby the chain maybe readily tightened around the pipe.

With these and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts aswill be more fully described and particularly pointed out in theappended claim. I

In the accompanying drawings :Figure 1 is a side view of a wrenchconstructed in accordance with my invention; Fig. 2 is an edge view ofthe same; Fig. 3 is a central vertical longitudinal section; Fig. 4c isa similar view taken at right angles to Fig. 1; Fig. 5 is a crosssectional view on the line 55 of Fig. 1; Fig. 6 is a detail view of oneof the jaws of the wrench.

My improved wrench comprises a handle 1 having therein a centrallongitudinal bore or passage 2 and having the opposite sides of itsouter end recessed as at 3 to form seats to receive the jaws 4 of thewrench, said jaws being secured to the handle by a plurality of bolts 5as shown. On the inner sides of the jaws are formed inwardly projectingtransverse spacing lugs 6 which also serve as stops for the chainoperating devices hereinafter described. The outer ends of the jaws aremade of alligator form by means of recesses 7 the edges of which haveformed thereon ratchet teeth 8, all facing outward whereby said edgesare caused to obtain a firm grip on the pipe or'object Specification ofLetters Patent.

App1ication filed March 20, 1911.

- Patented Jan. 23,1912.

Serial No. 615,460.

to be turned. The outer portions of the jaws are rigidly connected by abolt 9 arranged in alined apertures formed in the jaws and spacing lugs6 as shown.

Arranged-in the handle is a chain attaching and adjusting membercomprising a shank .10 having a sliding engagement with the passage 2,and on the outer end of the shank between the jaws 4 a transverselydisposed head ll'to one end of which is pivotally connected one end of apipe engaging chain 12. On the opposite end of the head is formed atapered slightly inclined nose 13 with which is adapted to be adjustablyconnected the opposite end of the chain after the latter has been passedaround the pipe or other object to be turned. When thus arranged thehead 11 will engage the stop or spacing lugs 6 on the jaws so that whenthe wrench is operated all of the strain will be applied to the jaws.

The inner end of the shank 10 is threaded and projects through a boss14: formed on the inner end of the handle and with said boss 14 isrevolubly engaged an adjusting ferrule or nut 15 having therein athreaded socket to receive the projecting threaded end of the shankwhereby when said nut is turned in the proper direction the shank willbe retracted and the chain thus tightened around the object with whichthe same and the jaws are engaged. In the ordinary use of the wrench asufficient slack is given to the chain to permit either one or the otherof the toothed edges of the jaws to be engaged with the pipe and thelatter thus turned in either direction without removing and reversingthe wrench, thus providing a double acting wrench.

The particular feature of improvement embodied in this wrench lies inthe fact that the parts are so disposed and the links of the chain areof such size that ordinarily especially when the teeth 8 are new andsharpthe head 11 may be placed in contact with the lugs 6 and the chaindrawn over the pipe or other object to be turned and engaged with thenose 13 so tightly that a movement of the handle 1 in the properdirection will turn the pipe without necessarily adjusting the nut 15 atall, and the slack of the chain will be taken up by the teeth of thealligator jaws. When these teeth become a little dulled by constant use,however, it may be necessary to employ the nut 15, and after the chainhas been ad I t opposite egides thereo h end o he handle,

head a little downward -from the lugs "'6,

after which the operation will be the s a-lne as above described, nomatter in which d1- ection the-pi e is tu n Fro'm thefii e r ng a r exended en mnemonj E l1Slh fi ig th i and the minor details of,CQEQILIEUQQQH may be reso ted to with ut tlepar ing {from principle orsacrifi ing any o the e ral ages 0 fih lW $h QI as @tl fine n h ippendecl claim.

illage... I claim is c.

l1hel1enein dese bed chain ipipe wreneh comprising a tubular handle,.srj'aws seen-med f and provided wit with 93. 11 other over b l thr ughsaid spacing Qm ot (topics zit this ipfiten-t :ibe zdbtaiine'd mfiveeents we 31y addressing tthe wommissioner or irgten ts,

1m, propo tion lugs and jaws, a shank extending loosely throughout thebore of the handle and having'across head atits outer end with a nose atone extremity, both extremities of the head projecting laterally beyondsaid lugs,

, w the Jaws projecting longitudinally beyond regdi-ng description,taken in connection with the accompanying zdra'weings, the constructionand operation of the ntentio will be ee dily imdejr tood without saidlugs and having V-shaped recesses, with teeth-iiherei1 1facing outward,a chain connected with one extremity of said head, led thence past oneextremity of the :oontaoting lugs/sand around the bje being gripp bysaid figlPWS, :asmdithenee pfast theother BX" tn m ty f j z gs, end t awng its links al ated to eng ge s id 1 9 6, m t lind d 0n the oth r e dof he shank ge nst the inn r end the handl In test-em ee whe eoi havex'he etmto s t my hand in :prjesenoe of two subscribing witmesses.

on new c aim.

lVitnesses Ber BA-BQIQQK, H. A.

Washington, "1 2c."

